diff --git a/pysnmp/carrier/asyncio/dgram/base.py b/pysnmp/carrier/asyncio/dgram/base.py
index 854def5a..6eb546b3 100644
--- a/pysnmp/carrier/asyncio/dgram/base.py
+++ b/pysnmp/carrier/asyncio/dgram/base.py
@@ -73,8 +73,8 @@
 import asyncio
 import sys
 import traceback
-from socket import socket
 import warnings
+from socket import socket
 
 from pysnmp import debug
 from pysnmp.carrier import error
@@ -227,6 +227,7 @@ def normalize_address(
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/carrier/asyncio/dispatch.py b/pysnmp/carrier/asyncio/dispatch.py
index d5b63887..504991bf 100644
--- a/pysnmp/carrier/asyncio/dispatch.py
+++ b/pysnmp/carrier/asyncio/dispatch.py
@@ -36,9 +36,9 @@
 import asyncio
 import sys
 import traceback
+import warnings
 from time import time
 from typing import Tuple
-import warnings
 
 from pysnmp.carrier.base import AbstractTransport, AbstractTransportDispatcher
 from pysnmp.error import PySnmpError
@@ -114,6 +114,7 @@ def unregister_transport(self, tDomain: Tuple[int, ...]):
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/entity/engine.py b/pysnmp/entity/engine.py
index 0254d696..cfae851c 100644
--- a/pysnmp/entity/engine.py
+++ b/pysnmp/entity/engine.py
@@ -8,8 +8,8 @@
 import shutil
 import sys
 import tempfile
-from typing import Any, Dict
 import warnings
+from typing import Any, Dict
 
 
 from pyasn1.type import univ
@@ -291,6 +291,7 @@ def delete_user_context(self, arg):
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/entity/rfc3413/context.py b/pysnmp/entity/rfc3413/context.py
index cdca5a22..3bee4e27 100644
--- a/pysnmp/entity/rfc3413/context.py
+++ b/pysnmp/entity/rfc3413/context.py
@@ -5,6 +5,7 @@
 # License: https://www.pysnmp.com/pysnmp/license.html
 #
 import warnings
+
 from pyasn1.type import univ
 from pysnmp import debug, error
 from pysnmp.entity.engine import SnmpEngine
@@ -78,6 +79,7 @@ def get_mib_instrum(self, contextName: bytes = b"") -> MibInstrumController:
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/hlapi/v1arch/asyncio/cmdgen.py b/pysnmp/hlapi/v1arch/asyncio/cmdgen.py
index 8968b127..1cdd937c 100644
--- a/pysnmp/hlapi/v1arch/asyncio/cmdgen.py
+++ b/pysnmp/hlapi/v1arch/asyncio/cmdgen.py
@@ -5,8 +5,8 @@
 # License: https://www.pysnmp.com/pysnmp/license.html
 #
 import asyncio
-from typing import AsyncGenerator
 import warnings
+from typing import AsyncGenerator
 
 from pysnmp.hlapi import varbinds
 from pysnmp.hlapi.transport import AbstractTransportTarget
@@ -26,13 +26,6 @@
     "walk_cmd",
     "bulk_walk_cmd",
     "is_end_of_mib",
-    "getCmd",
-    "nextCmd",
-    "setCmd",
-    "bulkCmd",
-    "walkCmd",
-    "bulkWalkCmd",
-    "isEndOfMib",
 ]
 
 VB_PROCESSOR = varbinds.CommandGeneratorVarBinds()
diff --git a/pysnmp/hlapi/v1arch/asyncio/ntforg.py b/pysnmp/hlapi/v1arch/asyncio/ntforg.py
index 7d8794ce..bf290ced 100644
--- a/pysnmp/hlapi/v1arch/asyncio/ntforg.py
+++ b/pysnmp/hlapi/v1arch/asyncio/ntforg.py
@@ -17,7 +17,7 @@
 from pysnmp.proto.rfc1902 import Integer32
 from pysnmp.smi.rfc1902 import ObjectType
 
-__all__ = ["send_notification", "sendNotification"]
+__all__ = ["send_notification"]
 
 VB_PROCESSOR = NotificationOriginatorVarBinds()
 
diff --git a/pysnmp/hlapi/v1arch/dispatch.py b/pysnmp/hlapi/v1arch/dispatch.py
index 3eda7437..8a484f98 100644
--- a/pysnmp/hlapi/v1arch/dispatch.py
+++ b/pysnmp/hlapi/v1arch/dispatch.py
@@ -4,8 +4,8 @@
 # Copyright (c) 2005-2020, Ilya Etingof <etingof@gmail.com>
 # License: https://www.pysnmp.com/pysnmp/license.html
 #
-from time import time
 import warnings
+from time import time
 
 from pyasn1.codec.ber import decoder, encoder
 from pysnmp import debug
diff --git a/pysnmp/hlapi/v3arch/asyncio/auth.py b/pysnmp/hlapi/v3arch/asyncio/auth.py
index 80a8f47d..baa9cd31 100644
--- a/pysnmp/hlapi/v3arch/asyncio/auth.py
+++ b/pysnmp/hlapi/v3arch/asyncio/auth.py
@@ -485,6 +485,7 @@ def clone(
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/hlapi/v3arch/asyncio/cmdgen.py b/pysnmp/hlapi/v3arch/asyncio/cmdgen.py
index c63634f6..daefbfa3 100644
--- a/pysnmp/hlapi/v3arch/asyncio/cmdgen.py
+++ b/pysnmp/hlapi/v3arch/asyncio/cmdgen.py
@@ -34,8 +34,8 @@
 # THE POSSIBILITY OF SUCH DAMAGE.
 #
 import asyncio
-from typing import AsyncGenerator
 import warnings
+from typing import AsyncGenerator
 
 from pysnmp.entity.engine import SnmpEngine
 from pysnmp.entity.rfc3413 import cmdgen
@@ -58,13 +58,6 @@
     "walk_cmd",
     "bulk_walk_cmd",
     "is_end_of_mib",
-    "getCmd",
-    "nextCmd",
-    "setCmd",
-    "bulkCmd",
-    "walkCmd",
-    "bulkWalkCmd",
-    "isEndOfMib",
 ]
 
 VB_PROCESSOR = varbinds.CommandGeneratorVarBinds()
diff --git a/pysnmp/hlapi/v3arch/asyncio/ntforg.py b/pysnmp/hlapi/v3arch/asyncio/ntforg.py
index b04a5b0e..e302295a 100644
--- a/pysnmp/hlapi/v3arch/asyncio/ntforg.py
+++ b/pysnmp/hlapi/v3arch/asyncio/ntforg.py
@@ -21,7 +21,7 @@
 from pysnmp.hlapi.varbinds import NotificationOriginatorVarBinds
 from pysnmp.smi.rfc1902 import NotificationType
 
-__all__ = ["send_notification", "sendNotification"]
+__all__ = ["send_notification"]
 
 VB_PROCESSOR = NotificationOriginatorVarBinds()
 LCD = NotificationOriginatorLcdConfigurator()
diff --git a/pysnmp/proto/rfc1902.py b/pysnmp/proto/rfc1902.py
index 4880ae3c..34f00b7c 100644
--- a/pysnmp/proto/rfc1902.py
+++ b/pysnmp/proto/rfc1902.py
@@ -5,6 +5,7 @@
 # License: https://www.pysnmp.com/pysnmp/license.html
 #
 import warnings
+
 from pyasn1.type import constraint, namedtype, namedval, tag, univ
 from pysnmp.proto import error, rfc1155
 
@@ -280,6 +281,7 @@ class X(cls):
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/proto/rfc3412.py b/pysnmp/proto/rfc3412.py
index d51c28bd..5cec72f3 100644
--- a/pysnmp/proto/rfc3412.py
+++ b/pysnmp/proto/rfc3412.py
@@ -5,8 +5,8 @@
 # License: https://www.pysnmp.com/pysnmp/license.html
 #
 import sys
-from typing import TYPE_CHECKING
 import warnings
+from typing import TYPE_CHECKING
 
 
 from pyasn1.error import PyAsn1Error
@@ -727,6 +727,7 @@ def receive_timer_tick(self, snmpEngine: "SnmpEngine", timeNow):
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/smi/builder.py b/pysnmp/smi/builder.py
index 50ffd7ee..13621f37 100644
--- a/pysnmp/smi/builder.py
+++ b/pysnmp/smi/builder.py
@@ -10,10 +10,10 @@
 import sys
 import time
 import traceback
+import warnings
 from errno import ENOENT
 from importlib.machinery import BYTECODE_SUFFIXES, SOURCE_SUFFIXES
 from importlib.util import MAGIC_NUMBER as PY_MAGIC_NUMBER
-import warnings
 
 from pysnmp import debug, version as pysnmp_version
 from pysnmp.smi import error
diff --git a/pysnmp/smi/indices.py b/pysnmp/smi/indices.py
index 9a68e95b..abeb255d 100644
--- a/pysnmp/smi/indices.py
+++ b/pysnmp/smi/indices.py
@@ -113,6 +113,7 @@ def get_keys_lengths(self):
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/smi/instrum.py b/pysnmp/smi/instrum.py
index 78ba4f81..c5fe98db 100644
--- a/pysnmp/smi/instrum.py
+++ b/pysnmp/smi/instrum.py
@@ -297,6 +297,7 @@ def write_variables(self, *varBinds, **context):
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/smi/rfc1902.py b/pysnmp/smi/rfc1902.py
index 23ea6a7d..aca5c10a 100644
--- a/pysnmp/smi/rfc1902.py
+++ b/pysnmp/smi/rfc1902.py
@@ -1466,6 +1466,7 @@ def to_varbinds(self) -> "tuple[ObjectType, ...]":
     }
 
     def __getattr__(self, attr: str):
+        """Handle deprecated attributes."""
         if new_attr := self.deprecated_attributes.get(attr):
             warnings.warn(
                 f"{attr} is deprecated. Please use {new_attr} instead.",
diff --git a/pysnmp/smi/view.py b/pysnmp/smi/view.py
index 98a07425..8412e111 100644
--- a/pysnmp/smi/view.py
+++ b/pysnmp/smi/view.py
@@ -5,6 +5,7 @@
 # License: https://www.pysnmp.com/pysnmp/license.html
 #
 import warnings
+
 from pysnmp import debug
 from pysnmp.smi import error
 from pysnmp.smi.builder import MibBuilder